package com.wc.alorithm_luogu.P5704;

import java.util.Scanner;

/**
 * https://www.luogu.com.cn/problem/P5704
 * 字母转换
 */
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.next();

        char c = s.charAt(0);
        System.out.println((char)(c + ('A' - 'a')));
    }
}
